How shall we deal with them? There they are as a matter of fact; that no one can deny. They eventually have all the richness and complexity which are abundantly illustrated in human life; that must be realized to the full. But how are they to be interpreted? As part of the world-story, the highest outcome of its logic developed at} z'm'm? Or as alien insertions at} extra, derived from a logic of wholly different source? I advocate the acceptance of the former alternative. But what does this imply? It implies that the fully explicit logic of human reason is but a higher development of the scarcely explicit logic of perceptual intelligence and that this in turn has its roots deeply embedded in the implicit logic of instinct which, as I define it, is organic behaviour suffused with awareness.